English

innecessary

From in- + necessary.

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Latin necesse ‘unavoidable’

Latin necessārius ‘unavoidable’

Old French necessaire

Middle English necessarye

Today it means

adj Not required.

Language periods are conventional ranges, not dates for this word.

Etymograph / innecessary